Mechanical movement



(No Model.)

o 2 Sheets-Sheet 1. 0. A. PIOKLE.

' MECHANICAL MOVEMENT.

N0. 323,070. Patented July 28, 1885.

WITNESSES 7 V'JVTOR 5 'QG/ W zlm%wm7 Qaflcwui N. PETERS.PhoM-Lflhognphan Wahingion. D C

(No Model.) 2 Sheets-Sheet 2.

O. A. PIOKLE.

MECHANICAL MOVBMENTJ Y No. 323,070. v Patented July 28, 1885.

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NITED STATES PATENT OFFICE.

OBADIAH A. rIoKLnoF PALESTINE, TEXAS.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 323,070, dated July 28,1885.

Application filed December 9, 1884.

To all whom it may concern:

Be it known that I, O. A. PIOKLE, a citizen of the United States,residing at Palestine, in the county of Anderson and State of Texas,have invented certain new and useful Improvements in MechanicalMovements, of which the following is a specification, reference beinghad to the accompanying drawings.

My invention has relation to mechanical movements, and the object is toprovide a mechanical means for operating trip-levers or other devices 5and to this end the novelty consists in the system of levers and cranks,as will be hereinafter more fully described, and particularly pointedout in the claims.

In the accompanying drawings, similar letters of reference indicate thesame parts of the invention. Figure 1 is a perspective of my improvedmovement; Fig. 2, a perspective elevation of the same in operation, andFig. 3 a modification showing another form of applying it.

A trip-lever, D, is provided with a weight, (I, and said lever D is soattachedto the mechanism to be operated as to hold the said mechanism ina normal position when the end of the trip-lever is in engagement withthe detent e in the pawl E. The pawl E swings from a bracket, F, and isprovided with a cross-rod, G, and a a a" a are short levers, likewisesuspended from the bracket F in front of the crossrod G, each leverbeing provided with a spiral spring, a, secured to a second bracket, F.

I I I Dare cords or strings running from the levers a a a a to variouspoints of the structure, and so adjusted that the levers will be clearof the cross-rod G. It will thus be seen that if one of the cordsbreaksits lever will be (No model.)

pulled back by the springs connected to it, and, striking the cross-rodG, will knock the 0 pawl E from under the lever D and set the mechanismabove referred to in operation.

K is a cord running from the lower end of the pawl E down to a pull orhandle in reach of the operator, so that he can pullit, trip the lever,and operate the mechanism independently of the levers a a a a.

When the device is in operation and thelevers are set, if one of thecords is cut or otherwise disrupted it immediately and automat- 5oically trips the lever D, as above described.

A stop-cock, O, is shown near the rose-jet B on the steam-pipe A, andanother one may be located near :the boiler for the convenience of theengineer, if desired. It will thus be vseen that by any damage to thecord by being burnt or otherwise broken the stop-cock will be turned on.

Having thus fully described my invention what I claim as new and useful,and desire to secure by Letters Patent of the United States, is

1. The combination, with the weighted lever D and pawl E, having detente and crossrod G, of the bracket F, having levers a c a a cords l I II", and springs c, as and for the purpose set forth.

2. The combination, with the weighted lever D, of the pawl E, havingdetent eand cord K, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

()BADIAH A. PIOKLE.

Witnesses:

JIM CONAWAY, J. G. MoKAY.

